1947 i have whats the front drum to drum width and is a nova clip say 74 fromt steer ok to use on my 47..rear a camaro 80s ok?

 

I don't have the track width info, but 1974 is the last year of the rear steer Nova clips. 68-74 Nova front clip is nearly the same as first gen F-body. The 1975-79 Nova clips are front steer, same as the 1970-1981 F-body.